Under the right conditions, rocks will move across this dry lakebed, leaving trails behind them.

The mysterious white squirrels of this Illinois city are treated like sacred cows.

Tens of thousands of tiny bottles stuffed with various items.

A poignant museum dedicated to the history of the Dutch resistance against Nazi occupation

A beautifully eclectic mix of architectural styles.

One of the most iconic neon ads of former East Germany.

A fortress built to pacify local uprising that had a stint as a Nazi concentration camp before becoming a five-star hotel.

Occult books, tarot, oddities.

Devious political maneuvering and four ancient, working telescopes are central to the world's second-oldest observatory.

The Habsburgs' royal collections of art and wonders.

A 'living museum' in Leiden, the oldest of its kind in the Netherlands.

An unassuming rod in the Netherlands was once the old standard unit of length for the entire Dutch empire.

This Minsk museum has cat coffee, cat chess, cat art, and even a cat "staff," which visitors are free to take home.

One of the most poignant ruins of the Chernobyl nuclear disaster, the local football team's stadium has been quickly reclaimed by nature.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

This attraction was abandoned after the Chernobyl disaster.

This derelict superstructure was a very important warning system for the Soviet military.

A beautiful and moving memorial set on a little island in the middle of the river in Minsk.

The haunting complex honors the millions of Ukrainians who died in the forced famine under Soviet rule.

The home of the morbid art of corpse plastination is open for visitors to view the fascinating, but stomach-churning process.

A hidden church in a hidden courtyard tells the story of the Miracle of Amsterdam.

This bird-loving brewery is situated in an old municipal bathhouse, nestled beside a 300-year-old windmill.

A collection of biblical memorabilia.

A public urinal so pretty, it was declared a national monument.